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National Stock Number:
3120-01-244-5983
Federal Supply Class:
3120
National Item Identification Number:
012445983
Description:
BEARING,WASHER,THRUST
Detail:
An item of any peripheral shape usually having one flat or spherical surface and a centrally located hole. It is designed for applications involving moving (kinetic) loads. Except for items fabricated from bearing quality synthetic (plastic) or composed of multilayer material, one bearing surface must either have a specific surface finish designation of 32 microinch (0.8 micrometre) or less, arithmetical average (aa) (arithmetic mean deviation) or one of the following conditions: be lapped or ground; have visible or detectable means of lubrication; grooves, indentations; or self-lubrication. The thickness must not exceed 25 percent of the outside diameter of the shortest distance between peripheral flats (when thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance). Excludes straight, tubular (without flange) items having a bearing surface(s) parallel to the axis of the bore only. See also WASHER, FLAT and SPACER, SLEEVE.
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Manufacturer Information:
| 300167-120 | 05340 | LIDGERWOOD MANUFACTURING COMPANY | | 300167-F PIECE 120 | 05340 | LIDGERWOOD MANUFACTURING COMPANY |
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Techincal Specification:
| MATERIAL | PLASTIC PHENOLIC AND | | COTTON OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-P-18324 MIL SPEC ALL MATERIAL RESPONSES OVERALL | | STYLE DESIGNATOR | ROUND W/TWO FLATS | | WIDTH ACROSS FLATS | 20.7500 INCHES NOMINAL | | OUTSIDE DIAMETER | 23.7500 INCHES NOMINAL | | CORNER SHAPE | SQUARE FIRST OUTSIDE CORNER | | SQUARE SECOND OUTSIDE CORNER | | CHAMFERED FIRST INSIDE CORNER | | SQUARE SECOND INSIDE CORNER | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | OVERALL THICKNESS | 0.5000 INCHES NOMINAL | | CENTER HOLE SHAPE STYLE | ROUND | | DIAMETER | 13.5625 INCHES NOMINAL | | LUBRICATION MATERIAL | GREASE | | LUBRICATION FEATURE | GROOVE AND | | PERFORATION LEFT SIDE | | SPECIAL FEATURES | SEGMENTED ALONG VERT CL; TOP HALF FLAT 11.125 IN. FROM HORIZ CL,BOTTOM HALF FLAT 9.625 IN. FROM HORIZ CL; THIRD PERIPHERALFLAT 12.000 IN. R-H OF VERT CL W/ONE 1.250 IN. R NOTCH CENTERED ON HORIZ CL; SIXTEEN EQUALLY SPACED RADIAL GREASE GROOVES IN LEFT BEARING FACE,0.250 IN. W BY 0.125 IN. DP; SIXTEEN LONGITUDINAL GREASE GROOVE AROUND LEFT FACE INSIDE CORNER,0.250 IN. W BY 0.125 IN. DP; SIX 0.656 IN. DIA COUNTERSUNK THROUGH HOLES IN LEFT BEARING FACE,UNEQUALLY SPACED ON 21.500 IN. DIA BLT CIRCLE |
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